Repository Index

A lightweight, lightning-fast, in-process vector database

• rag
• agent-skills
• embedded
• faiss

immudb - immutable database based on zero trust, SQL/Key-Value/Document model, tamperproof, data change history

• key-value
• immutable
• merkle-tree
• go

javascript embeddable / in-memory database

Immutable database and Datalog query engine for Clojure, ClojureScript and JS

• clojure
• database
• memory-database
• clojurescript

MapDB provides concurrent Maps, Sets and Queues backed by disk storage or off-heap-memory. It is a fast and easy to use embedded Java database engine.

BuntDB is an embeddable, in-memory key/value database for Go with custom indexing and geospatial support

• database
• in-memory
• key-value
• golang

An in memory postgres DB instance for your unit tests

• hacktoberfest
• pg-promise
• typeorm
• node-postgres

High-performance, columnar, in-memory store with bitmap indexing in Go

• db
• soa
• indexing
• bitmap

SirixDB is an an embeddable, bitemporal, append-only database system and event store, storing immutable lightweight snapshots. It keeps the full history of each resource. Every commit stores a space-efficient snapshot through structural sharing. It is log-structured and never overwrites data. SirixDB uses a novel page-level versioning approach.

• xquery
• java
• temporal-data
• storage

Embeddable vector database for Go with Chroma-like interface and zero third-party dependencies. In-memory with optional persistence.

• embeddings
• go
• golang
• llm

pickleDB is an in memory key-value store using Python's orjson module for persistence. It can also use SQLite instead of orjson if needed.

• python
• python3
• pickledb
• database

Nornicdb is a distributed low-latency, Graph+Vector, Temporal MVCC with all sub-ms HNSW search, graph traversal, and writes. Using Neo4j Bolt/Cypher and qdrant's gRPC means you can switch with no changes while adding intelligent features like schemas, managed embeddings, reranking+llm, GPU accel, Auto-TLP, Policy-based Memory Decay, and MCP server.

• bolt
• cypher
• database
• enterprise-solutions

Embeddable, in-memory, document-oriented database with a high-level Query builder interface.

• database
• embedable
• go
• in-memory

A high performance, shared memory, lock free, cross platform, single file, no dependencies, C++11 key-value store

Embeddable and distributed in-memory alternative to Redis.

• cluster
• database
• distributed
• memory

Ultra High-performance Lightweight Embedded and Server OLTP RDBMS✨

• database
• rdbms
• transaction
• imdb

BKNR datastore - MOP-Based in-memory database with transactions for Common Lisp

A pure JavaScript implementation of TinkerPop's TinkerGraph in-memory graph database

A low-memory json-based database for MicroPython

This is a significant fork of BKNR datastore - MOP-Based in-memory database with transactions for Common Lisp